Automatic elevator-guard.



J. H. COLE. AUTOMATIC ELEVATOR GUARD.

APPLICATION FILED'OCT. 20, I914. 1,10,263. Patented Nov. 16,1915.

FIZZ:

INVENTOR h? A TTOR/VFV WITNESSES 6 JAY H. COLE, OF BINGHAMTCiN, NEW YORK.

AUTOMATIC ELEVATOR-GUARD.

Specification of Letters Patent.

Patented Nov. 16, 1915.

Application filed October 20, 1914. Serial No. 867,574.

7 all whom it may concern: V

Be it known that I, JAY H. COLE, a citizen of the llnited States, residing at Binghamton, in the county of Broome and State of New York, have invented certain new and useful Improvements in Automatic Elevator-Guards, of which the following is a specification.

My invention relates to an improvement in guards for freight elevator doors, operated automatically to prevent persons entering upon the doors when closed andin which a bar is held across the elevator entrance between upright guides and lifted automatically upward out of the way as the doors are opened and brought downward into position again when the doors are closed, and it has for its object to provide a simple, effective and automatically operated guard to prevent persons stepping upon or walking upon the floor doors in freight elevators when the doors are closed as before stated and to be automatically removed when the doors are opened.

\Vith this object in view my invention consists of certain novel features of construction and arrangement of parts as will be. hereinafter fully described and pointed out in the claim. I

Figure l is a front view of my device with doors closed and bar across entrance. Fig. 2 is a plan view ofmy device with doors closed, in elevator shaft for two opposite entrances. Fig. 3 is a plan view of my device with doors closed in elevator shaft for one entrance.

The same reference characters denote like parts in each of the several figures of the drawing.

In carrying out my invention I provide oneach side of the entrance to elevator, two parallel guide bars 2. 2 and 2. 2 which extend between the floor and ceiling of the building. Between the guide bars 2. 2 and 2. 2 I place the bar A. Projecting from the inner side of bar A, I have the pins or bolts 3. 3; pivotally mounted on the ends of pins 3. 3 and 3. 3 I have the rods 4. 4; the rods 4. 4 having at their opposite end pivotal connection, in any convenient manner, with the hinged floor doors B. B of elevator shaft at 5. Through each end of the bar A I have the pins 6. 6 for the purpose of preventing any lateral movement of the bar A as it moves up and down between the vertical guides. 2. 2.

In the operation of my device which applies to freight elevator doors opening automatically and propelled by the usual machinery of such elevators, when the doors B. B are open, the rods 4. 4 move upward bearing with them the bar A until it reaches a height of the length of the rods 4. 4 as shown in Fig. 1, so as to be out of the way of persons on the elevator as they pass out onto the floor of the building. When the doors B. B close downward as the elevator platform moves on, the doors B. B' carry with them the pivotal rods 4. 4 which in turn lower the bar A gliding downward between the guides 2. 2. In elevator shafts having two sides open I have mounted on each open side my device as shown in Fig. 2. \Vhen the shaft has but one entrance I have the bar on but one side as shown in Fig. 3.

Having thus described my invention, what I claim as new and for which I desire Letters Patent is as follows:

In guards for entrances to freight elevators, two parallelvertical guide bars mounted between floor and ceiling on each side of the elevator entrance; a cross bar mounted between each set of guides and extending across the elevator entrance; a guide pin extending through eaehend of the cross bar outside of the vertical guides; a pivot pin mounted on one side of each end of the cross bar; two lever bars, each having at its lower end pivotal connection with one of tlie elevator doors and its upper end in pivotal connection with one of said pivot pins on the cross bar, all for the purposes above described.

In testimony whereof I have affixed my signature in presence of two witnesses.

JKY H. COLE.

Witnesses i E. A. JOXNER, M. F. TERRY. 

